Set Nastran solvers From Siemens PLM.NX Nastran solves structural analysis problems for linear and nonlinear analysis, dynamic response, rotor dynamics, aeroelasticity and optimization. The NX Nastran 10.1 release further increases the types of solutions you can perform, along with a number of computational performance and engineering workflow improvements as highlighted by the examples below:

Discipline and Physical Domain ExtensionNX 10.2 - Simulation - Nastran - Discipline and Physical Domain ExtensionSpeed-dependent bearing properties for rotor dynamics allow you to more realistically simulate bearings in rotating systems, such as aircraft engines. Properties of the bearing are speed-dependent and support the inherent cross-directional coupling stiffness and viscous damping.Greater flexibility to model multi-rotor systems allows you to describe speeds of all rotors independently. This means you can model multiple rotors to have more complex rotor speed functions that are not simply fixed ratios between each other.Frequency-dependent acoustic absorbers characterize absorbing material as fluid with equivalent properties. This results in a less computationally intensive solution than direct modeling.pic